Electrical Drives And Controls Set 8

Mechanical Engineering

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This set of Electrical Drives and Controls EDC Multiple Choice Questions & Answers (MCQs) focuses on Electrical Drives And Controls Set 8

Q1 | The value of slip at which maximum torque occurs  
Q2 | AC voltage controllers convert
Q3 |   devices were used for voltage control applications.
Q4 |   applications.
Q5 | In the principle of phase control
Q6 | consists of
Q7 | The below shown controller circuit is a
Q8 | The below given controller circuit is a
Q9 | circuit
Q10 | Which motor is preferred for Jaw crushers?
Q11 | A high starting torque is offered by the Belt Conveyors.
Q12 | Which starting method is the worst method in Induction motor?
Q13 | The capacity of the Crane is expressed in terms of tonnes.
Q14 | 1800 second rated motors are used for
Q15 | Calculate the frequency of the rotor side of the IM if the value of slip is 0.34 and the supply frequency is 70 Hz.
Q16 | Calculate the resonant frequency if the values of the capacitor and inductor are 4 F and 4 H.
Q17 | Calculate the value of the angular acceleration of the Heavy duty crane using the given data: J = 5 kg-m2, load torque = 30 N-m, motor torque = 80 N-m.
Q18 | The direction of the single-phase IM can be reversed by using which one of the method?
Q19 | Which motor is preferred for overhead traveling cranes?
Q20 | Which test is used to determine the conditions where electric motors are being used?
Q21 | What is the range of size of the motor (kW) for efficiency nearly equals to 90%?
Q22 | Calculate the heat loss in the electric motor for time interval 0-5 sec using the following data: Ia=2 A, Ra=.8Ω.
Q23 | 1 Btu/h is equal to                        
Q24 | Overloading can be prevented using
Q25 | Full form of IDMT is                    
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